Electrodynamic power plant and operation method therefor

Abstract

A transmission for a vehicle equipped with an electrodynamic starting element or an electrodynamic power plant ( 1 ) and an electrodynamic starting element or an electrodynamic power plant ( 1 ) having an electric motor ( 2 ) and a planetary transmission ( 5 ) located between the internal combustion engine ( 4 ) and the transmission ( 3 ) in which the reverse gear is implemented by adequate adjustment of the electric motor ( 2 ) of the electrodynamic starting element or of the electrodynamic power plant ( 1 ) so that the vehicle is driven in reverse gear by the electric motor ( 2 ), the mechanical parts required for the reverse gear with the internal combustion engine ( 4 ) being eliminated.

1 - 7 . (canceled)  
   
   
       8 . A vehicle system comprising a transmission for a vehicle equipped with one of an electrodynamic starting element and an electrodynamic power plant and one of the electrodynamic starting element and the electrodynamic power plant having an electric motor and a planetary transmission located between the internal combustion engine and the transmission, a reverse gear being implemented by adequate adjustment of the electric motor ( 2 ) of one of the electrodynamic starting element and of the electrodynamic power plant ( 1 ) such that the vehicle is driven in reverse gear by the electric motor ( 2 ).  
   
   
       9 . The vehicle system according to  claim 8 , wherein a crankshaft retaining device ( 22 ) is provided to lock a crankshaft of the internal combustion engine ( 4 ) in a reverse gear operation.  
   
   
       10 . The vehicle system according to  claim 9 , wherein the crankshaft retaining device ( 22 ) is a brake by which the crankshaft of the internal combustion engine ( 4 ) is coupled to at least one of a transmission housing or a clutch bell housing ( 12 ).  
   
   
       11 . The vehicle system according to  claim 8 , wherein a reduced vehicle system length achieved as a result of elimination of mechanical parts required for reverse drive with the internal combustion engine ( 4 ) is used to lengthen a clutch bell housing ( 12 ) so that the electric motor ( 2 ), having a stronger power, is installed.  
   
   
       12 . A method for implementing the reverse gear in a vehicle system comprising a transmission for a vehicle equipped with one of an electrodynamic starting element and an electrodynamic power plant and one of the electrodynamic starting element and the electrodynamic power plant having an electric motor and a planetary transmission located between the internal combustion engine and the transmission, a reverse gear being implemented by adequate adjustment of the electric motor ( 2 ) of one of the electrodynamic starting element and of the electrodynamic power plant ( 1 ) such that the vehicle is driven in reverse gear by the electric motor ( 2 ), the method comprising the steps of: 
 activating one of a first gear and a second gear while the vehicle is one of performing a stopping operation and stopped;    rotating the internal combustion engine, when the vehicle is stopped and no crankshaft retaining device ( 22 ) is provided, at an idle rotational speed and driving the electric motor ( 2 ) via the planetary transmission ( 5 ) connected with the transmission input, opposite to a direction of rotation of the internal combustion engine; and    selecting a mode of operation of the electric motor ( 2 ) by switching in the reverse gear switch on a vehicle side, so that when an accelerator pedal is actuated, one part ( 23 ) of a third quadrant of a characteristic field of the electric motor is used so that the electric motor ( 2 ) accelerates in an opposite direction to rotation of the internal combustion engine.    
   
   
       13 . A method for implementing the reverse gear in a vehicle system comprising a transmission for a vehicle equipped with one of an electrodynamic starting element and an electrodynamic power plant and one of the electrodynamic starting element and the electrodynamic power plant having an electric motor and a planetary transmission located between the internal combustion engine and the transmission, a reverse gear being implemented by adequate adjustment of the electric motor ( 2 ) of one of the electrodynamic starting element and of the electrodynamic power plant ( 1 ) such that the vehicle is driven in reverse gear by the electric motor ( 2 ), the method comprising the steps of: 
 activating one of a first gear and a second gear vehicle while the vehicle is one of stopped and stopping;    when a crankshaft retaining device ( 22 ) is provided, engaging a reverse gear switch on a vehicle side, to shut off the internal combustion engine ( 4 ) and engage the retaining device ( 22 ) for the crankshaft; and    enabling an accelerator pedal to perform a function of an electric nominal value sensor for the electric motor ( 2 ) connected via the planetary transmission ( 5 ) with the input shaft ( 7 ) of the transmission ( 3 ), such that when a driver depresses an accelerator pedal, the vehicle accelerates in the reverse gear.    
   
   
       14 . The method for implementing the reverse gear according to  claim 12 , further comprising the step of giving the speed in the reverse gear by power of the electric motor ( 2 ) and ratios of the planetary transmission ( 5 ), of the first gear or of the second gear and driven vehicle axle.